Conversion Specialists in Marylebone, West London

Name: Conversion Specialist
Brand: MyBuilder
SKU: conversions-specialist
Rating: 4.8 (51 reviews)

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Some of our top rated conversion specialists in Marylebone, West London

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Tom Build Services
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
TomBuild Services are London-based building contractors, specialising in a vast range of jobs; from full home renovations to kitchen and bathroom refurbishments. See full list of services below. - Public Liability Insurance - 1-year warranty on all work - Competitive pricing Full list of Services Painting and decorating Tiling Kitchen Fitting Bathroom Fitting Joinery Patios Fences Garden maintenance
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Latest review:
Bathroom Fitting- 4 Apr 2026
I’m very happy with my new bathroom. The quality of the work is excellent, and I absolutely love the new design - it’s transformed the space beautifully. Tomasz was always punctual, which made the whole process smooth and stress-free, and he made sure everything was left clean and tidy at the end of each day. Communication was clear and consistent throughout, so I always knew what was happening. Highly recommend!
CM Fixing Limited
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Specialized in a vast number of Façade Installations as:Façades installation (installation of different types of cladding, curtain wall system, single and double glazed system); Shop fronts, atriums, GRC and metal panels facades, high performance rainscreen cladding system, canopies,balustrades, louvres, vents, privacy screens, etc.); Maintenance of glazing systems; Glass replacements; Structural Glazing, Structural Silicone, Suspended Ceiling,Terracotta Rainscreen, Mastic Works.
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Latest review:
Windows & Doors (uPVC & Metal)- 25 Apr 2026
We found Marian from CM Fixing after the suppliers recommended fitter proved unresponsive and we are so pleased we did. We have found dealing with Marian an absolute pleasure - really responsive communication, excellent price and he has done a fantastic job for us today. They arrived promptly at 8am and fitted our new doors with no fuss and lots of care and it’s all looking amazing. I would recommend Marian and his team to anyone considering an installation.
B.CANI Limited
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Reliable, fully insured construction company delivering high-quality workmanship across residential and commercial projects. We cover all aspects of construction including extensions, renovations, loft conversions, kitchens, bathrooms, roofing, landscaping and full refurbishments. From design to completion, we manage every stage with clear communication, fair pricing and attention to detail. Customer satisfaction, safety and deadlines are our priority.
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Latest review:
Extensions- 11 Jan 2018
This was our first project, and we were exceptionally fortunate to find Bujar. We're actually getting tired of hearing our family and friends tell us how lucky we are and how amazing he sounds. One of the most honest, trustworthy, and genuine people I've ever met. If I had a problem, he'd be one of the first people I'd call! In fact I did last week and he came to the rescue :) His team were all friendly, polite, conscientious and very tidy. They worked around us as much as they could, always making sure we had access to what we needed which sometimes meant it took them longer to work. Bujar is a perfectionist and is so proud of what he does, he made sure everything was done to a high standard - the estate agent who came round after we were done was impressed! His prices are very fair (better value than other quotes we got and much less time). We couldn't believe it was done in the 3 months he said it would take, and we managed to fit in a few extra bits and pieces after that. He was so helpful throughout, took all project management on and didn't bother us unless an important decision needed to be made. He drove us around all over the place to sort kitchens, bathrooms, etc. and gave us really helpful advice throughout the process. Highly recommend him and his team. I can't imagine ever wanting to look for another builder unless I had to - something that is quite common amongst Bujar's clients. We are extremely pleased with everything about our new house.
Apex Plan & Build LTD
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Apex Plan & Build is your trusted partner in turning vision into reality. Specializing in both domestic and commercial construction, we are dedicated to transforming houses into dream homes and businesses into efficient, modern spaces. With over 30 years of collective industry experience, our team ensures every project is completed to the highest standard, offering expertise in M&E works, including air source heat pumps and MVHR ventilation systems. We also bring cutting-edge innovation to your space with smart home automation solutions like Loxone and Control4, creating environments that are not only beautiful but also intelligent and energy-efficient. Apex Plan & Build is where your dream project is our top priority.
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Latest review:
Very professional and organised. My rear extension renovation was impeccable, thorough knowledge of building regulations with a variety of services to choose from really put me at ease. The venetian plaster feature wall has become the centrepiece of our home.
d.harris.contracts
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
we pride ourselves in re-newing,troubleshooting & re-storing...... We specialise in all type of windows & doors - renewing - repairing & restoring.... We provide a joinery service..... Tilt n Turn window specialist.... Idealcombi/ Rationel & Velfac works undertaken...... We are "FENSA/ Constructline/Chas & Safe Contractor Registered.....
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Latest review:
Windows & Doors (uPVC & Metal)- 28 Nov 2014
Great job, speedy completion and very helpful. I will certainly consider using Del for other projects.
ara design
No reviews yet
Conversion Specialist in Marylebone, West London
We are a team of specialists consisting of architectural consultant, interior designer, project manager, joiner, wall finishing specialist and stone layer. Our strenghts lay in creativity, space planning, experience and attention to detail.
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O.S.A Housekeeping And Consultancy Work Ltd
No reviews yet
Conversion Specialist in Marylebone, West London
Welcome to O.S.A Building renovation and Housekeeping services , your trusted partner for all your Building works such as installations, DIY , roofing, Electrical work and many more as well as cleaning needs . We are a professional company and exceptional cleaning services to residential and experienced Handyman's , Engineer Technicians and cleaning professionals ,we are committed to delivering outstanding results that exceed your expectations. At O.S.A, we understand the importance of home improvements and a clean healthy environment . Our mission is to create pristine spaces that promote well-being and productivity. Whether it's your home ,office , or any other space , we have the expertise and resources to tackle even the most challenging home renovation or fixes and cleaning tasks . We offer a comprehensive range of home improvements solutions and can provide expertise technicians to cater to our client needs whether it's for building services such as renovations or cleaning services tailored to meet specific requirements . Our services includes all types of renovations and DIY all sorts or works in indoor and external home works, residential or commercial businesses , we have experienced builders that cover all fields .
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Kieron
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
Hi, I’m Kieron. With five years of experience in carpentry, I'm here to assist you with both first and second fix carpentry. I also have some knowledge of general building work, so don’t hesitate to reach out with any questions. I look forward to speaking with you and helping with your project!
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Latest review:
Carpentry- 2 May 2025
Job starts next week
LJB General Building & Construction Limited
Rating: 1 out of 5
Conversion Specialist in Marylebone, West London
We are a small family construction company called LJB we deal with our clients like they are one of us We work with their budget and Tring our best to make everything that they want to become truth
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Latest review:
Conversions - General- 21 Dec 2023
Terrible company. Not reliable and eventually stopped responding to messages. Doesn’t turn up on time either. Will advise everyone to stay away.
JG builders
No reviews yet
Conversion Specialist in Marylebone, West London
Kiwi living in London in south west London with +10 years experience can do a range of jobs from loft conversions to hanging tv brackets. Loves to get stuck in and help clients get there dream result
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B Batten Carpentry
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
A carpentry business with more than 10 years experience in domestic and commercial sectors. Typical work carried out ranges from small domestic works such as . KITCHENS . STUD WALLS . DOOR HANGING . GARAGE CONVERSIONS . STAIRS AND BALUSTRADE . FLAT ROOF REPAIRS AND CONSTRUCTION
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Latest review:
Conversions - General- 22 Jan 2021
We're very happy that we found Brian to work on our bathroom remodel. He was able to adjust the job when we found some unexpected construction issues. His pricing was fair and he is very easy to work with and adaptable.
Corporate Business consulting Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
We are a group of experienced electricians, plumbers, and general builders looking to help to fix your leak, tie that wire and help you with your next renovation project!
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Latest review:
Plumbing- 22 Dec 2022
Informative and fixed my kitchen tap.
BDS TM Limited
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
FULL REFURBISHMENT ,HOUSE EXTENSION AND LOFT CONVERSION SPECIALIST,PAINTING, ELECTRICAL&PLUMBING
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Latest review:
Electrical- 18 Apr 2020
Ben fixed my lights and electrics in garden. He took his time and was punctual. Hes very helpful and resonable. i was very happy with his work, i would recomend him to anyone what a nice man.
Urban Construction Management Limited
No reviews yet
Conversion Specialist in Marylebone, West London
We have been in business since 2015, and working with a number of leading contractors within the construction industry in the country. We have carried out works from new builds to refurbishments, and specialise in loft conversions and extensions, garden rooms, kitchens and bathrooms, and structural alterations. We have all the relevant insurance - employment liability, public liability and professional indemnity cover. We are certified by Construction Line, CHAS, Safe Contractor and BMTrada (Fire Door Installer).
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CT Construction and Management Ltd
Rating: 5 out of 5
Conversion Specialist in Marylebone, West London
With many years in the construction industry With a General Build experience in all aspects of , Assured worked will be completed to the highest standard
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Latest review:
Fencing- 14 Nov 2020
I found Toolsie extremely knowledgeable, reliable and polite. The work he completed was above my expectations and done to a very high standard. His honesty, hard work, and willingness to go the extra mile, even in poor weather, was exceptional.I would happily recommend him.
GDS Building Ltd
Rating: 4 out of 5
Conversion Specialist in Marylebone, West London
GDS BuildingLtd: A trusted and fully accredited interior decoration company based in London, specialising in delivering high-quality painting, decorating, and finishing services. With a commitment to precision, professionalism, and on-time project delivery, we are the ideal partner for subcontracting on larger-scale projects. Our team ensures flawless execution, tailored to your standards, and we’re fully insured to provide peace of mind. Let us add value and excellence to your projects.
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Latest review:
Bathroom Fitting- 10 Aug 2025
Fitted a radiator, sink, toilet, shower and painted. The guys did a good job. Would recommend and use again. Thanks Gheorghe and team

4.8

Top rated Conversion Specialists

Our Conversion Specialists in Marylebone, West London, are rated 4.8 out of 5 based on 51 reviews from customers like you.

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What types of services are offered by conversion specialists in Marylebone, West London?

Conversion specialists are the people you need to make underused areas of your home practical and fit for purpose.

If you need to increase your living space and improve its functionality, a conversion specialist can help with:

Loft conversions: Turning attics into bedrooms, offices, or storage spaces.
Garage conversions: Transforming garages into living areas, studios, or utility rooms.
Basement conversions: Creating usable living spaces in previously underutilised basements.
Barn and outbuilding conversions: Updating detached buildings for modern use, such as guest accommodation or home offices.
Internal reconfigurations: Knocking through walls, creating open-plan layouts, or combining rooms.
Commercial-to-residential conversions: Adapting offices or shops into homes.

No matter the tasks of your conversion project, MyBuilder makes it easy to find local conversion specialists near you. Simply post your job and receive responses from conversion professionals in Marylebone, West London who are available to take on your project.

Costs of conversions in Marylebone, West London

Conversion costs in Marylebone, West London vary widely depending on the type of work, the size of the space, and the materials involved.

As a rough guide, here’s what you can expect to pay for different conversion tasks:

Loft conversions costs: £40,000–£65,000+
Garage conversion costs: £15,000–£25,000
Basement conversion costs: £60,000–£120,000+
Barn and outbuilding conversions: £30,000–£80,000+
Internal reconfigurations: £5,000–£20,000
Commercial-to-residential conversions: £50,000–£150,000+
Hourly labour rate: £20–£35 per hour
Daily labour rate: £160–£280 per day
Demolition and removal costs: £500–£5,000+

Note: Material costs can vary widely depending on the type of conversion and the finishes you choose. For example, structural steel, roofing, and high-spec windows can increase costs significantly, while insulation or interior finishes may be more moderate. Discuss this ahead of time with any potential conversion specialists to ensure you get the right quote.

If you’re seriously considering a conversion for your home, Marylebone, West London conversion specialists will be the best source of accurate pricing information. Find your preferred conversion specialists near you to ask for a quote tailored to your project specifics.

Find a conversions specialist in Marylebone, West London with MyBuilder

Converting part of your home is a big investment, so finding the right tradesperson is key to ensuring a smooth and successful project. MyBuilder connects you with verified conversion specialists in Marylebone, West London, giving you control over who you hire and how you manage your project.

Step 1: Post your job on MyBuilder for free

Start by describing the type of conversion you need on our platform. Give as much detail as you can! You can also include images to give tradespeople a better idea of the work you would like completing. Once posted, your job is shared with conversion specialists in Marylebone, West London.

Step 2: Review and contact Marylebone, West London conversion specialists

You can browse company profiles to find the right Marylebone, West London conversion specialist for you, check out previous work, and read genuine customer feedback. Once you’ve decided on some potential conversion specialists, you can reach out to discuss the project details further and request detailed, itemised quotes that outline labour, materials, and timelines, helping you compare options clearly before making a decision.

Step 3: Make your final choice

Now that you’ve gathered the information and received detailed quotes from Marylebone, West London conversion specialists, you can easily make your final choice in just a few clicks.

By comparing prices, timelines, and approaches, you stay fully in control of who you hire and how your conversion is carried out. Once you’ve selected the right tradesperson for your project, you can arrange a suitable date and time, and get your conversion underway!

MyBuilder verifies each tradesperson when they join by checking ID, company registration, and relevant qualifications for regulated industries. Post your conversion job on MyBuilder today and start receiving responses from interested conversion specialists in Marylebone, West London.

FAQs: Questions about Marylebone, West London conversions

How do I find available conversion specialists in Marylebone, West London?

You can find local conversion specialists through platforms like MyBuilder, where you can compare profiles, reviews, and quotes to help you choose the right professional for your project.

How long does a typical home conversion take?

Most home conversions take between 4 and 12 weeks, depending on the size, complexity, and type of project. Larger structural changes or regulatory approvals can take longer.

Are conversion specialists required to have insurance in Marylebone, West London?

Yes, reputable conversion specialists typically hold public liability insurance to cover potential damage or accidents during the project. Some may also carry employer’s liability or professional indemnity insurance, depending on the work.

Do conversion specialists in Marylebone, West London offer warranties or guarantees on their work?

Many conversion specialists offer warranties or guarantees for workmanship and structural integrity, though the terms and duration vary by company. Always confirm what’s included before hiring.

Can a conversion specialist in Marylebone, West London help with planning permission and building regulations?

Yes, many conversion specialists can advise on planning permissions, submit applications, and ensure your project complies with building regulations, although some homeowners choose to handle these steps themselves.

How far in advance should I book a Marylebone, West London conversion specialist?

It’s best to book at least 2–4 months in advance, especially during busy periods like spring and summer. Specialist conversions may require even longer lead times.

Can conversion specialists handle design as well as construction, or will I need an architect too?

Some conversion specialists offer design-and-build services, managing both stages of the project. For more complex conversions or structural changes, you may still need to involve an architect or structural engineer.